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PRIMER: Mathematical Notations |
|
PRIMER: Mathematical Notations |
This primer is available to help you understand
some of the notations used in the practice problems. You may want
to print this primer and keep it handy as a reference while
working on the practice problems and exams for this class.
| * | = MULTIPLICATION |
| / | = DIVISION |
| ^ | = RAISED TO A DEGREE ( ex. 2 ^ 2 = 2 2 = 4 ) |
| SQRT | = SQUARE ROOT ( ex. SQRT (9) =  9 = 3 ) |
| X-BAR | = ( ) |
| P-BAR | = ( ) |
| X^2 | = CHI SQUARED (X 2) |
| MU | = MEAN (  ) |
| VAR | = VARIANCE for the population |
| SD | = STANDARD DEVIATION OF POPULATION
(  ) |
| SDX | = STANDARD DEVIATION OF THE SAMPLING
DISTRIBUTION OF THE SAMPLE MEAN X-BAR ( ) |
| SDP | = STANDARD DEVIATION OF THE SAMPLING
DISTRIBUTION OF THE SAMPLE MEAN P-BAR ( ) |
| <= | = Smaller Than OR Equal To ( ) |
| >= | = Greater Than OR Equal To ( ) |
| +INF | = POSITIVE INFINITY ( ) |
| -INF | = NEGATIVE INFINITY ( ) |
| ALPHA | = ALPHA ( ) |
| Sxy | = Sample Covariance |
| Y | = Estimate of y by the regression equation |
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